Addition
Subtraction
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Decimals & Fractions
Word Problems
100

 1.3 + 2.8

4.1

100

3.6 - 1.5

2.6

100

1.1 x 2.3

2.53

100

Write 31/100 as a decimal

0.31

100

My sister Plooff plants pumpkins in a rectangular patch that measures 2.4 meters by 6 meters. What is the area of Plooff's pumpkin patch? 

14.4 m2

200

1.91 + 2.2

4.11

200

81.4 - 0.99

80.41

200

2.53 x 3.7

9.361

200

Write 44/10000 as a decimal

0.0044

200

Last weekend my uncle Smedley ate 4.125 large pizzas, each of which had 10.5 grams of parmesan cheese. How much parmesan did Smedley eat?

43.3125 grams 

300

55.23 + 44.77

100

300

3.0001 - 0.01

2.9901

300

9.36 x .012

.11232

300

Write 1.357 as a mixed number

1  357/1000

300

Plooff ate 3.091 pounds of mysterious goop. Smedley ate twice as much as Plooff. Blort ate 0.5 pounds less than Plooff. How many pounds of goop did my relatives eat all together?

11.864 pounds 

3.091 + 6.182 + 2.591

400

14.9 + 16.001

30.901

400

1.0012 - .0234

.9778

400

.101 x .99

.09999

400

Answer as a decimal: 33/100 - 11/1000

0.319
400

Cousin Blort uses both hands to make hot dogs as fast as he can. He makes 4.32 hot dogs per minute with his left hand and 6.1 hot dogs per minute with his right hand. How many hot dogs does he make all together PER HOUR? PER HOUR!!! PER HOUR NOT PER MINUTE

4.32 + 6.1 = 10.42 hot dogs per MINUTE (wrong answer)

10.42 x 60 = 625.2 hot dogs per HOUR

500

123.456 + 78.9

202.356

500

123.456 - 78.9

44.556

500

3.14 x .159

.49926

500

Answer as a decimal:

3/1000 ÷ 6/100

3/1000 x 100/6 = 1/20 = .05

500

Smedley is 2.3 times as old as his son Blort, who is 4.61 years older than my sister Plooff. If Plooff is 12.06 years old, exactly how old is uncle Smedley?

38.341 years old


12.06 + 4.61 = 16.67. 

16.67 x 2.3 = 38.341